Photos: The Great Washington, D.C. Cicada Invasion from John M. Esparolini.
Photos: Invasion of Cicadas & Friends: May 27th, 2004 – McLean, VA, from Norman Bercasio.
Photos: Brood X in Southern Indiana , from Janee.
These lovable (though somewhat creepy) creatures come out every 17 years, digging their way out from underground. In their 17th summer, they fly around, rather clumsily, mate, lay their eggs, and then die. Their above-ground show lasts about 6 weeks.